1. Product Overview of High Damping Rubber Bearing (HDR)

Premium high damping seismic isolation rubber bearing (HDR) manufactured by Hebei Guchen Engineering Rubber Co., Ltd., widely applied in bridge and building anti-earthquake protection, with excellent energy dissipation performance, fully complying with global engineering standards.

Our high damping rubber bearings (HDR) are classified into bridge high damping rubber bearings and building high damping rubber bearings. Both types adopt high-quality high damping rubber formula, available in circular and square designs, with adjustable damping ratio to meet different seismic isolation project requirements.

Classification of High Damping Rubber Bearings by Functional Type

Fixed High Damping Seismic Isolation Bearing: The displacement of the bearing is realized by rubber shear deformation. The horizontal shear of rubber can bear large horizontal force. Structurally, it is divided into Type I, Type II and Type III. The seismic isolation function is achieved through large horizontal shear deformation and hysteretic energy dissipation of the high damping rubber.

Sliding High Damping Seismic Isolation Bearing: The bearing displacement relies on the sliding friction pair composed of PTFE sliding plate and stainless steel plate on the top surface. The low friction coefficient enables the bearing to bear small friction force, and the seismic isolation effect is realized by sliding of the friction pair.

Structural Classification of  Fixed High Damping Rubber Bearing (HDR)

Internal Structure of Sliding High Damping Rubber Bearing (HDR)

1.1 Load Transfer Principle of HDR Bearing

The vertical load transfer process of the HDR series high damping rubber bearing:

Girder → Upper Embedded Steel Plate → Upper Connecting Steel Plate → Upper End Plate → High Damping Rubber and Reinforcing Steel Plate Laminated Structure → Lower End Plate → Lower Connecting Steel Plate → Pier Abutment.

The seismic horizontal load transfer process of the HDR series high damping rubber bearing:

Pier Abutment → Lower Anchor Assembly → Lower Connecting Steel Plate → Shear Key, Lower End Plate → High Damping Rubber and Reinforcing Steel Plate Laminated Structure → Upper End Plate, Shear Key → Upper Connecting Steel Plate → Upper Embedded Steel Plate → Transmitted to the Girder via Upper Anchor Assembly.

Tensile Performance Specifications of High Damping Isolation Rubber Bearing

Physical Property Specifications for Internal Rubber Material of High Damping Rubber Bearings (HDR)

2. Product Features of High Damping Rubber Bearing (HDR)

• Excellent high damping performance and superior energy dissipation capacity, effectively reducing seismic damage to bridges and buildings.
• Stable vertical stiffness ensures reliable vertical load-bearing performance for long-term structural safety.
• Moderate horizontal stiffness meets both seismic isolation and conventional displacement requirements of bridges and buildings.
• Made of high-quality high damping rubber, with wide temperature adaptation range and strong aging resistance.
• Adjustable damping ratio and flexible size customization, adapting to various seismic isolation project design needs.
• Easy to install, inspect, maintain and replace, with low long-term operation and maintenance costs.

3. Our Company’s Test Items for High Damping Rubber Bearing (HDR)

All our high damping rubber bearings (HDR) are strictly tested before delivery to guarantee seismic safety and product quality, fully complying with global engineering standards:

4. On-site Construction of HDR Seismic Bearing

Custom & OEM Service

Hebei Guchen provides customized High Damping Rubber Bearing (HDR) with different sizes, damping ratios and shapes for global seismic isolation projects. Factory direct supply, fast delivery and professional technical support, fully meeting your project requirements.